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LOS ANGELES, CA — The erotic blockbuster “Fifty Shades of Grey” can create some strange situations. Dakota Johnson stars in the film. Her mother, Melanie Griffith, has never seen the movie.

"I don't think I can, it would be strange," said Melanie Griffith.

Then the red carpet interview got very awkward. Johnson used some foul language to respond to her mom. WGN-TV entertainment critic Dean Richards says it was the only moment worth watching during the 4 hours of red carpet coverage. See the strange interview unfold in the video above.